/Engine/Source/Runtime/Engine/Classes/Engine/SkeletalMeshLODSettings.h
Set this LOD Settings from InMesh->LODInfo return # of settings that are set. Return N for 0-(N-1).
int32 SetLODSettingsFromMesh ( [USkeletalMesh](API\Runtime\Engine\Engine\USkeletalMesh) * InMesh )